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Lensbaby — camera lenses are a line of camera lenses produced by Lensbabies that mate a simple lens with a bellows for use in special effect photography. Lensbaby lenses can be used on cameras which accept interchangeable lenses, mainly of the 35 mm or… … Wikipedia
Gas cylinder — For the mechanical devices used to impart a force from a pressurized liquid or gas, see pneumatic cylinder. For the large structures used to store town gas, see gas holder. Industrial compressed gas cylinders used for oxy fuel welding and cutting … Wikipedia
Schrader valve — The Schrader valve, invented by August Schrader in the 1890s, consists of a valve stem into which a valve core is threaded, and is used on virtually all automobile tires and wider rimmed bicycle tires. The valve core is a poppet valve assisted by … Wikipedia

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